Irradiation device for therapeutical and other purposes



March 22 1927. I 1,622,142

F. GIRARD IRRADIATION DEVICE FOR THERAPEUTICAL AND OTHER PURPOSES Filed NOV. 17. 1922 2 Sheets-Sheet 1 TIT 1, 22,142 March 22,1927. GRARD 6 IRRADIATION DEVIUE FOR THERAPEUTICAL AND OTHER PURPOSES F'ile d Nov. 17. 1922 2 Sheets-Sheet z Furthermore, the me ical u adapted to accomplish all Patented Mar. 22, 1927.

UNITED STATES PATIENT OFFICE.

I'RITZ GIBABD, OF HANAII-ON-TBE-MAIN, GERmNY, ASSIGNOR TO THE FIRM: QUABZ- LAHPEN-GESELLSCHAFT HIT BESCHR A NKTER HAFTUNG OF HANAU-ON-THE- MAIN, GERMANY.

III-RADIATION DEVIQE FOR THERAPEUTICAL AND OTHER PURPOSES.

Application filed November 17, 1922, Serial No. 601,612, and in Germany November 21, 1921.

heat rays,-more particularly for therapeuti-' cal and similiar purposes, though the invention is not restricted to this particular mode of application, and it provides an apparatus of the kind referred to of very simple construction which fulfills all the requirements heretofore made for apparatus of this kind in a manner not heretofore attained. Among other important objects my invention pro vides improved means for adjustment and further means for advantageously utilizing a maximum of the available rays produced.

In the practiceof therapeutics it is intended by light and heat irradiation to either intensely radiate the rays over the entire surface of the body of the patient or to treat only smaller or larger sections of the skinwith different degrees of intensity. It is desirable in this connection to apply the particular irradiation to be utilized to every portion of the body with as few and simple manipulations as possible, without requiring the patient to assume uncomfortable positions, and in view thereof the apparatus according to this invention provides means for allowing a rapid and simple adjustment in every desired position of both the relative arrangement of the cone of rays in space as well as of the direction of such rays, and it also provides means for the rays to remain in the adjusted osition with security.

a graduation of the irradlatlon as regards its quality, that is to say, the wave length, this being accomplished by the insertion of light filters in the cone of radiation. For the purpose of ensuring the desired results the proper selection of a sufliciently strong source of light and heat becomes necessary; and preferably a special metal filament lamp consuming at least 1000 watts an hour employed, preferably of such construction that the lamp will burn in any position without danger of a premature damaging of the incandescent metal filament occurring. Provision should, however, also be made to increase the radiation for the ducing the extremes of light and heat effects.

An apparatus constructed in accordance with the present invention is excellently these purposes. The invention will be more fully escribed practice calls for" purpose of pro-,'

with reference to the accompan ing drawmgs, showing by way of examp e an apparatus embodying the principles of my invention. In the drawings- Figure 1 is a side view of the entire apparatus, while Fi ure 2 is a considerably enlarged sec tlona view of the lamp casing;

Figure 2 is a like view of an additional reflector.

Figure 3 is a somewhat enlarged sectional view of the supporting bracket of the casing,

while Figure 4 is a sectional view through a filter arranged so as to be interchangeable with the reflector shown in Fig. 2, and

Figure 5 shows a washer.

As appears from Fig. 1 of the drawing, the apparatus comprises substantially a supporting stand 1 with a supporting arm 2 mounted thereon and adapted to be rotatable on the same, and upon which the reflector casing 3, 4, 5 is supported, in the interior of WhlCh the source of light 6 is fastened by meansof the socket 7.

The reflecting portion of the apparatus is composed of a parabolic reflector 3 secured to the supporting parts of the source of light, and of a funnel-shaped, sectional and inwardly polished hollow reflector 4, 5. The larger part 4 of thesame is hooked to the edge of the parabolic reflector 3 by means of a plurality, for instance three, struts 8 provided with hooks and by means of a small screw 8', securing the same in position. While the parabolic reflector by itself radiates light and heat with moderate intensity at an angle of about 140, the angle of radiation from the opening of the funnel-sha ed reflector 4, at an intensity increased by ateral reflection, amounts to only about In order to provide for cooling of the parts by a circulation of air the funnel-shaped reflector 4 is out of contact with the parabolic reflector 3 so as to leave a slot between the detail of a safety edge of the larger opening of the funnelshaped reflector preventing the escape of considerable portions of the direct or of reflected light. For the purpose of increasing the intensity of radiation the smaller funnel-shaped reflector 5 constituting a continuation of the larger one may besecured to the funnel-shaped reflector 4 by means of a ingly increased intensity of radiation the hook-connection 9 and a swingingly mounted clamping screw '10. With a correspondangle of radiation will then be reduced to about By the intense-radiation of heat the marginal portion of the small funnel will be heated to such a degree that upon touching it with-the human skin burning thereof will result. In order to avoid this, a protective ring 11-of heat insulating material, such as cork, is mounted at a small distance from the opening of the shaft of the funnel and upon the edge of the same, the said ring being cooled by the air circulating between the edgeof the funnel and the ring.

A supporting ring 12 has mounted there- .on the parabolic refiector, and the support ing means and the protecting casing for the socket 7. The supporting means comprise a cylindrical guide 13, in the interior of which the socket 7 is axially displaceable by means of a threaded spindle provided for operation with a hand wheel 14 or the like. By this means it becomes possible'to vary the distance ofthe center of the source of light from the focus of the parabolic reflector 'provided with one or a plurality of ball joints or universal joints. If the weight of such apparatus does not exceed a certain admissible, the well-known link connections may be used, while with heavier apparatus as in the present case these means of connection do not suflice, owing to the fact that suflicient friction for retaining the apparatus with security in all positions cannot be secured for any length of time. In the apparatus according to this invention a kind of cross or universal joint is likewise used,

but with the peculiarity that its two axes of rotation are not situated in one and the same plane, but cross each other in space at a certain distance approximately equal to the length of the supporting arm. In this manner not only the adjustabilit in all directions as in the case of the or inary ball and universal joints is obtained, but the further possibility is afforded of furnishing the oints, which are separated from each other, with a substantial, extensive and therefore 'reliable and easily accessible braking means,

I the frictional action of which may, moreover, be made adjustable.

In the embodiment shown by way of example m the drawing the two axes of rotation crossing each other in space are constituted by the axis ab, which passes through the trunnio'ns of the supporting ring 12, and on the other hand the axis cal passing through the pivoting stud 15 of the supporting arm 2. The braking means for both axes comprises two compressed spring actuating steel discs 16 of which one is secured to the stationary part, while the other is mounted on the relatively movable part, which carries it along by aid of a pin or the like. Both discs bear upon each other under pressure and their mutual friction may be moderated by an insertion disc 16 of soft metal, fiber, card board, leather or the like. The compressing pressure is produced and regulated by a threaded bolt 15 and a nut 17. Between this nut and the steel disc mounted thereon a washer 18 is provided which by a suitable projection engages with a corresponding groove of the particular stud, by which means its rotat1on and the otherwise resultingautomatic loosening of the nut is prevented.

The front portion 5 of the reflector may, if desired, be replaced with a light filter as represented in Figure 4. of the drawing. This filter consists of two pressed sheetmetal rings 19, 20, between which strips 21 of colored glass or of some other kind of special glass of particular transparency are retained. By making the filter disc of individual strips the bursting of the disc bK heat is obviated. Ring 20 is provided wit vent holes 22; and the umbrella-shaped formation of the other ring 19 has the effect of substantially preventing the escape of li ht through the vent holes. By means of astening means 9 and 10 similar to those employed for the smaller funnel-shaped reflector 5, the filter can be secured to the opening of the large reflector 4 so as toreplace the small reflector.

The invention has been shown merely by way of example in one of its preferred embodiments, but it is to be understood that I do not desire to be limited thereto, but may vary the construction and relative arrangement of the various parts and use other equivalent means to suit existing conditions and the convenience of the user and within the scope of my invention.

1. Irradiation apparatus for therapeutic and other purposes comprising a supporting stand, a slide movable along said stand, a supporting arm mounted on said slide for axial rotation, light emitting and reflecting means mounted at the end of said supporting arm for rotation about an axis extending at right angles to the axisof rotation of said arm and resilient frictional clutchin means between said slide and said arm an between said arm and said light emitting and reflecting means, respectively, for automatically means mounted at the end of said support ing arm for rotation about an axis extending at right angles to the axis of rotation of said arm, pairs of cooperating resilient bolic reflecting light emitting means and a funnel-she friction discs between said slide and said arm and between said arm and said light emitting and reflecting means, respectively,

for automatically securing said parts in the' adjusted position and screws for increasing the friction between said discs.

3. Irradiation apparatus for therapeutic and other purposes comprising a supporting stand, a slide movable along said stand, a supporting arm mounted on said slide for axial rotation, light emitting means, parabolic reflecting means surrounding said 1i ht emitting means and a funnel shaped re ector pro ecting into and extending-axially of said reflecting means, said light emitting and reflecting means being mounted atthe end of said arm for rotation about an axis extending at right angles to the axis of rotation of said arm and means between said slide and said arm and between said arm and said light emitting and reflecti means, respectively, for automatically securing said parts in the adjusted position.

4. Irradiation apparatus for therapeutic and other purposes comprising a supporta su porting arm mounted on said slide for axia rotation, light emitting means, parameans surrounding saidi reflector in several removably assemb ed parts, an inner and an outer part, projecting into and extending axially of said re-' fleeting means, fleeting means said arm for rotation about an axis extending at right angles to the axis of rotation of said arm and means between said slide and said arm and between said arm and said light emitting and reflecting means, respectively, for automatically securing said parts in the adjusted positio 5. Irradiation apparatus for therapeutic and other purposes comprising a supporting stand, a slide movable along said stand, a supporting arm movable on said slide for axial rotation, light emitting means, parabolic reflecting means surrounding said light emitting means and a funnel-shaped reflector means at the outer end of said reflector for securing thereto a light filter projecting into and extending axially of said reflecting means, said light emitting and resaid light emitting'and reflecting mean's mounted at the end of mg stand, a slide movable along said stand,

being mounted at the endot said arm for rotation about an axis extending at right angles to the axis of rotation of said arm, means between said slide and said arm and between said arm and said light emitting and reflecting means, respectively, for automatically securing said parts in the adjusted position and a light filter adapted to be fixed to the outer end of said reflector.

6. Irradiation apparatus for therapeutic and other purposes comprisinga supporting stand, a slide movable along said stand, a supporting arm mounted on .said slide for axial rotation, light emitting means, parabolic reflecting means surrounding said light emitting means and a funnel-shaped reflector means at the outer end of said reflector for securing thereto a light filter p'rojecting into and extending axially of said reflecting means, said light emitting and reflecting means being mounted at the end of ,said arm for rotation about an axis extending at right angles to the, axis of rotation of said arm, means between said slide and said\ arm and between said arm' and said light emitting and reflecting means, respectively, for automatically securing sgid parts in the adjusted position and glass strips assembled to form a light filter adapted to be fixed to the outer end of said reflector.

7. Irradiation apparatus for therapeutic and other purposes comprising a supporting stand, a slide movable along said stand. a supporting arm movable on said slide for axial rotation, light emitting means, parabolic reflecting means surrounding said light emitting means and a funnel-shaped reflector means at the outer end of said reflector for securing thereto a light filter projecting into and extending. axially of said reflecting means, said light emitting and reflecting means being mounted at the end of-said arm for rotation about an axis extending at right angles to the axis of rotation of said arm, means between said slide and said arm and between said arm and said lightemitting and reflecting means, respectively, for automatically securing said parts in the adjusted position and an annular apertured cap, a funnel-' shaped ring surrounding said cap and a plurality of glass strips between said cap and ringforming a li ht filter, said cap, ring and strips being ar la ted to be fixed tothe outer end of said re ector.

8. Irradiation apparatus for therapeutic and other purposes comprising a supporting stand, a slide movable along said stand, a supporting arm mounted on said slide for axial rotation, light emitting means, arabolic reflecting means-surrounding said ight emitting means and a funnel-shaped reflector projecting. into and extending axially of said reflecting means, saidlight emitting and reflecting means bein mounted at the end of said arm for rotation about an axis tion of said arm, means between said slide and said arm and between said arm and said light emltting and reflecting means, respectively, for automatically securing said parts inthe adjusted position, said reflector being spaced apart from the inner wall of said parabolic reflecting means, and an annular screen mounted on the inner end of said reflector so as to screen off light rays from the gap between the parts.

9., Irradiation apparatus for therapeutic and other purposes comprisinga supporting stand, a'slide movable along said stand, a supporting arm mounted on said slide for axial rotation, light emitting and reflecting means mounted at the end of said supporting arm'for rotation aboiit an axis extending at right angles to the axis of rotation of said arm, resilient means for axially adjusting said light emitting means with regard to said light reflecting means and means between said slide and said arm and between said arm and said light emitting and reflecting means, respectively, for automatically securing said parts in the adjusted position.

10. Irradiation apparatus comprising in combination, a supporting arm, light emit-' ,ting and substantially parabolic light reflecting means mounted on said arm for rotation in two planes at right angles to each other, sectional funnel-shaped outwardly reduced light reflecting means surrounding the light emitting means and within the parabolic light reflecting means and slightly spaced therefrom, means to detachably secure the difl'erent light reflecting means to each other and protecting means at the open front end of the outwardly ing means. f

11. Irradiation apparaths comprising in combination, a su porting arm, light emitting means and su st'antially parabolic light reflecting means surrounding the light emit-' reduced reflect- I ting means and secured thereto and adapted 12. Irradiation apparatus comprising in combination, a supporting arm, a holder adjustably and rotatably secured on said su porting arm, on said holder, a source of lig t mounted in said bearin and mounted on said holder, a substantially parabolic reflector surrounding the source of light and mounted on said holder, sectional, substantially conical, outwardly reduced additional reflecting means surrounding said source of light in spaced relation to said parabolic reflecting means, and relatively displaceable frictional brake discs on said holder adapted to secure the light emitting and reflecting means in the adjusted position.

13. Irradiation apparatus comprising, in

combination, a supporting arm, light emittingand light reflecting means mounted on said supporting arm for rotation and adjust ment in different directions, a marginally apertured annulus detachably secured to the reduced end of the conical reflecting means, a substantially funnel-shaped annular pro tecting shade surrounding the apertured marginal part and'a light filter at the outerend of said annulus comprising a plurality of sectionally combined colored glass plates;

In testimony whereof I aflix my signature;

FRITZ, GIRABD, 

